Scientific Advisory Group for Emergencies (SAGE): Coronavirus (COVID-19) response

The Scientific Advisory Group for Emergencies (SAGE) provides scientific and technical advice to support government decision makers during emergencies.


SAGE is responsible for ensuring that timely and coordinated scientific advice is made available to decision makers to support UK cross-government decisions in the Cabinet Office Briefing Room (COBR). The advice provided by SAGE does not represent official government policy.

Expert groups

SAGE relies on external science advice and on advice from expert groups. During COVID-19 this includes the:

These groups consider the scientific evidence and feed in their consensus conclusions to SAGE.

Scientific evidence supporting the government response to COVID-19

The national and global response to the spread of COVID-19 continues to develop quickly and our knowledge of the virus is growing. These statements and accompanying evidence demonstrate how our understanding of COVID-19 has evolved as new data has emerged.

This page will be updated on a regular basis with the latest available evidence provided to SAGE.

Introduction to the evidence

Current understanding of COVID-19

Behavioural and social interventions

Behavioural science

Self-isolation and household isolation

Mass gatherings

Modelling inputs

Emerging evidence about COVID-19

Reports from Imperial College London

The models

Specific pieces of modelling on interventions provided to SAGE